The Biden administration is exploring having three Central Asian countries temporarily take in thousands of Afghans who worked with U.S. forces and face threats from the Taliban now that American troops are withdrawing after 20 years, three sources familiar with the matter said Friday.

They said Washington is in talks with Kazakhstan, Tajikistan and Uzbekistan about letting in the at-risk Afghan citizens. Two of the sources were U.S. officials and all requested anonymity.

The three sources said an agreement did not appear imminent with any of the countries.